# NTSB Accident CHI98FA313
> **Hiller FH-1100** · 1998-08-14 · DEWITT, MI, USA · FATL
## Event
- **NTSB number:** CHI98FA313
- **Event ID:** 20001211X10785
- **Type:** Accident
- **Date:** 1998-08-14
- **Location:** DEWITT, MI, USA
- **Coordinates:** 42.859035, -84.589538
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** Hiller
- **Model:** FH-1100
- **Registration:** N8171U
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The rotor failure/malfunction due to debonding of the tail rotor blade.  Also causal was the inadequate maintenance inspection of the aircraft by the company and the improper maintenance procedure by other maintenance personnel.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI98FA313) · AI Analytics · CC0 1.0*